The word Toling is misspelled against Tooling, a noun meaning "Work performed with a tool."
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Tooling has double "oo" is mispronounced as "o"
Remember double 'OO' in between the strings t & ling which should not be misspelled with single 'O'
Wrong Spelling:  t-o-ling 
Correct Spelling:  t-oo-ling 
Find more incorrect spellings of Tooling to spell right way.